Lewis & Short

Volumnĭus, i, m.; Volumnĭa, ae, f.,

  1. I. the name of a Roman gens.
      1. 1. P. Volumnius, a Roman consul, Liv. 3, 10.
      2. 2. L. Volumnius, a consul, who conquered the Samnites, Liv. 9, 42; 10, 18 sq.
  2. II. Volumnia.
      1. 1. The wife of Coriolanus, Liv. 2, 40.
      2. 2. A freed-woman, mistress of M. Antonius, Cic. Phil. 2, 24; otherwise called Cytheris, v. Cytheris.
        Hence, Volumnĭā-nus, a, um, adj., of or named from Volumnius: exercitus, Liv. 19, 12.